EP 1574710 A3 20061220 - Control valve for variable displacement compressor

Title (en)

Control valve for variable displacement compressor

Title (de)

Regelventil für einen Kompressor mit veränderlicher Verdrängung

Title (fr)

Soupape de contrôle pour un compresseur à capacité variable

Publication

EP 1574710 A3 20061220 (EN)

Application

EP 05004036 A 20050224

Priority

JP 2004070980 A 20040312

Abstract (en)

[origin: EP1574710A2] In the control valve 1 for a variable displacement compressor, a bellows 30 is disposed between a pressure-sensing piston 16 and a core 22 in a pressure-sensing chamber S. A pressing force-transmitting member 90 fixed to a plunger 21 is interposed between the pressure-sensing piston 16 and the bellows 30. A spring 63 which urges the pressing force-transmitting member 90 toward a valve section 10 is disposed between the pressing force-transmitting member 90 and the bellows 30. As a result, even if the bellows 30 contracts due to high suction pressure Ps, the pressing force-transmitting member 90 is held by the spring 63 urged toward the valve section 10 to fully open the valve section 10 via the pressure-sensing piston 16, whereby the minimum operation of the compressor can be maintained.

IPC 8 full level

F04B 27/18 (2006.01); F04B 49/00 (2006.01); F04B 27/14 (2006.01)

CPC (source: EP KR US)

B42D 15/00 (2013.01 - KR); F04B 27/1804 (2013.01 - EP US); G09B 3/02 (2013.01 - KR); F04B 2027/1827 (2013.01 - EP US); F04B 2027/1854 (2013.01 - EP US); F04B 2027/1859 (2013.01 - EP US); G09B 19/0046 (2013.01 - KR)

Citation (search report)

[XA] EP 1106829 A2 20010613 - FUJIKOKI CORP [JP]
[XA] EP 1099578 A1 20010516 - TOYODA AUTOMATIC LOOM WORKS [JP]
[DA] JP H06346845 A 19941220 - TOYODA AUTOMATIC LOOM WORKS
[A] JP H0727049 A 19950127 - TOYODA AUTOMATIC LOOM WORKS, et al

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR LV MK YU

DOCDB simple family (publication)

EP 1574710 A2 20050914; EP 1574710 A3 20061220; EP 1574710 B1 20080416; CN 1667270 A 20050914; DE 602005006034 D1 20080529; DE 602005006034 T2 20080731; JP 2005256770 A 20050922; KR 20060043852 A 20060515; US 2005201866 A1 20050915; US 7387501 B2 20080617

DOCDB simple family (application)

EP 05004036 A 20050224; CN 200510053877 A 20050314; DE 602005006034 T 20050224; JP 2004070980 A 20040312; KR 20050020313 A 20050311; US 7685305 A 20050311